Upgrade versions; prepare for milestone release

Author: garyrussell

build.gradle

@@ -55,19 +55,19 @@ ext {
 	googleJsr305Version = '3.0.2'
 	hamcrestVersion = '2.2'
 	hibernateValidationVersion = '6.1.6.Final'
-	jacksonBomVersion = '2.12.0'
+	jacksonBomVersion = '2.12.1'
 	jaywayJsonPathVersion = '2.4.0'
 	junit4Version = '4.13.1'
 	junitJupiterVersion = '5.7.0'
 	kafkaVersion = '2.7.0'
 	log4jVersion = '2.14.0'
-	micrometerVersion = '1.6.1'
-	mockitoVersion = '3.6.28'
-	reactorVersion = '2020.0.2'
+	micrometerVersion = '1.6.3'
+	mockitoVersion = '3.7.0'
+	reactorVersion = '2020.0.3'
 	scalaVersion = '2.13'
-	springDataVersion = '2021.0.0-M1'
+	springDataVersion = '2021.0.0-M2'
 	springRetryVersion = '1.3.0'
-	springVersion = '5.3.2'
+	springVersion = '5.3.3'
 
 	idPrefix = 'kafka'
 }